For a long time, I’d thought GIMP had bad support for tablets. Aside from feeling a lot of kinetic dissonance from the choppy feedback, I saw multiple mouse cursors. One cursor was from my laptop touch pad and another from my Wacom stylus. The two moved independently and stylus cursor disappeared every time I navigated away from the canvas.

double-cursor

I searched a lot for GIMP tablet configurations and Wacom drivers for Linux, but turns out it was a Wayland issue.

Gnome with Xorg solved everything!

Hope this helps whoever else stumbles across this.